Gate lock



FIG. 1 is a side perspective view of a gate lock showing my new design;

FIG. 2 is a left side plan view thereof;

FIG. 3 is a right side plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear plan view thereof; and,

FIG. 7 is a front plan view thereof.

In the drawings, the broken lines depict unclaimed subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a gate lock, as shown and described. 